<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>显示变量</title>
</head>
<body>
<?
$t1="学习php";
$t2="学习显示变量";
$t3="array("a","b","c")";
echo $t1;
echo $t2;
echo "字母是{$t[0]}";
?>
</body>
</html>